This paper mainly introduced mainly the design parameters and structure specialties of the motor carand trailer bogie of Kunming electric mototr train unit, developed by Changchun Passenger CarWorks.是什么意思_This paper mainly introduced mainly the design parameters and structure specialties of the motor carand trailer bogie of Kunming electric mototr train unit, developed by Changchun Passenger CarWorks.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句